JavaScript检测flash player的版本号

   1: function getFlashVersion() {

   2:     var flashVer = NaN;

   3:     var ua = navigator.userAgent;

   4:  

   5:     if (window.ActiveXObject) {

   6:         var swf = new ActiveXObject('ShockwaveFlash.ShockwaveFlash');

   7:  

   8:         if (swf) {

   9:             flashVer = Number(swf.GetVariable('$version').split(' ')[1].replace(/\,/g, '.').replace(/^(\d+\.\d+).*$/, "$1"));

  10:         }

  11:     } else {

  12:         if (navigator.plugins && navigator.plugins.length > 0) {

  13:             var swf = navigator.plugins['Shockwave Flash'];

  14:  

  15:             if (swf) {

  16:                 var arr = swf.description.split(' ');

  17:                 for (var i = 0, len = arr.length; i < len; i++) {

  18:                     var ver = Number(arr[i]);

  19:  

  20:                     if (!isNaN(ver)) {

  21:                         flashVer = ver;

  22:                         break;

  23:                     }

  24:                 }

  25:             }

  26:         }

  27:     }

  28:  

  29:     return flashVer;

  30: }

  31:  

  32:  

  33: var flashVer = getFlashVersion();

  34:  

  35: if (!isNaN(flashVer)) {

  36:  

  37:     document.write('当前flash player 的版本：' + flashVer);    

  38:  

  39: } else {

  40:     document.write('您尚未安装flash播放器');

  41: }